PT-2026-69326

Name of the Vulnerable Software and Affected Versions Almico Speedfan version 4.52 Description A weakness in the MSR Index Handler component allows a local attacker to cause a memory leak. This issue occurs within the KiSystemCall64 function located in the speedfan.sys library. Recommendations At...

CVE-2026-19382: Missing Release of Memory after Effective Lifetime

A weakness has been identified in Almico Speedfan 4.52. This affects the function KiSystemCall64 in the library speedfan.sys of the component MSR Index Handler. Executing a manipulation can lead to memory leak. The attack can only be executed locally. The exploit has been made available to the...

Design/Logic Flaw

Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, does not properly check a buffer during an IOCTL 0x9c402420 call, which allows local users to cause a denial of service machine crash and possibly gain privileges via unspecified vectors...

CVE-2007-5633

Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, allows local users to read or write arbitrary MSRs, and gain privileges and load unsigned drivers, via the 1 IOCTLRDMSR 0x9C402438 and 2 IOCTLWRMSR 0x9C40243C IOCTLs to \Device\speedfan, as...

Code injection

Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, allows local users to read or write arbitrary MSRs, and gain privileges and load unsigned drivers, via the 1 IOCTLRDMSR 0x9C402438 and 2 IOCTLWRMSR 0x9C40243C IOCTLs to \Device\speedfan, as...

CVE-2007-5634

The CVE-2007-5634 entry concerns SpeedFan 4.33 (SpeedFan.sys) on Windows Vista x64 . The vulnerability arises from an improper buffer check during IOCTL 0x9c402420, allowing local users to cause a denial of service (machine crash) and potentially gain privileges via unspecified vectors. Affected ...

CVE-2007-5634

Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, does not properly check a buffer during an IOCTL 0x9c402420 call, which allows local users to cause a denial of service machine crash and possibly gain privileges via unspecified vectors...

CVE-2007-5633

The SpeedFan.sys driver in Alfredo Milani Comparetti SpeedFan 4.33 is vulnerable to local privilege escalation when used on Microsoft Windows Vista x64 . The root cause is the ability of local users to read or write arbitrary Model Specific Registers (MSRs) via the IOCTL_RDMSR (0x9C402438) and IO...

CVE-2007-5633

Speedfan.sys in Alfredo Milani Comparetti SpeedFan 4.33, when used on Microsoft Windows Vista x64, allows local users to read or write arbitrary MSRs, and gain privileges and load unsigned drivers, via the 1 IOCTLRDMSR 0x9C402438 and 2 IOCTLWRMSR 0x9C40243C IOCTLs to \Device\speedfan, as...